Dual-Mode Display Pixel Correction for Private Viewing Power Savings
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Solution Overview
Problem
Electronic devices face challenges in balancing power consumption and display quality, particularly in environments where viewing angles need to be restricted for information protection or safety, and different images are required in separate display areas.
Innovation Solution
A dual-mode operation is implemented in the display panel, where pixels can operate in public or private modes, with dynamic correction circuits adjusting luminance and color balance based on mode and element type, and phase-locked loops manage signal timing to optimize power efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple correction circuits are used to correct data for different light emitting elements, then display quality is improved, but power consumption increases
Solution Approach 1:
The correction circuits are configured to operate dynamically based on the operating mode of the pixel. When the pixel operates in the first mode, only the first correction circuit operates to correct data for the first light emitting element. When the pixel operates in the second mode, only the second correction circuit operates to correct data for the second light emitting element. This dynamic activation based on operational mode reduces overall power consumption while maintaining display quality for the active elements.
Solution Approach 2:
The patent extracts and separates the correction functions for different light emitting elements into distinct correction circuits. The first correction circuit is dedicated to correcting data for the first light emitting element, while the second correction circuit is dedicated to correcting data for the second light emitting element. This separation allows only the necessary correction circuit to operate based on which light emitting element is active, reducing unnecessary power consumption.
2Adaptability or versatility
If different images are displayed in separate areas of the display panel, then adaptability is improved, but device complexity increases
Solution Approach 1:
The display panel is divided into different areas with different pixel types - first pixels with first light emitting elements and second pixels with second light emitting elements. Each pixel type has its dedicated correction circuit (first correction circuit for first pixels, second correction circuit for second pixels). This segmentation allows different images to be displayed in separate areas while managing complexity through dedicated circuits for each segment.
Solution Approach 2:
The correction circuits are designed with multi-functionality to handle different operating modes. The first correction circuit can correct data for first light emitting elements in first pixels, and the second correction circuit can correct data for second light emitting elements in second pixels. This universal correction capability across different pixel types reduces the need for entirely separate correction systems, managing device complexity.
Data Source
AI summary
An electronic device including: a display panel including a first pixel including a first pixel circuit, a first-type light emitting element electrically connected to the first pixel circuit, and a second-type light emitting element electrically connected to the first pixel circuit, wherein the first pixel is configured to operate in a first mode or a second mode different from the first mode; a first correction circuit configured to receive data and generate intermediate correction data by performing a primary correction on the data; a second correction circuit configured to generate first-type intermediate correction data by correcting first intermediate correction data corresponding to the first-type light emitting element among the intermediate correction data; and a third correction circuit configured to generate second-type intermediate correction data by correcting second intermediate correction data corresponding to the second-type light emitting element among the intermediate correction data.